Chapter 4 Quiz

Question 1

One of the top five cause of a pre-phlebotomy pre-analytical error is:

Answer 1

Patient incorrectly identified

Question 2

Which transition based infection control precaution stops direct spread of bacteria by touching

Answer 2

Contact precautions

Question 3

Which transmitting based infection control precaution stops agent dispersed by talking, coughing, or sneezing?

Answer 3

Droplet precaution

Question 4

Which transmission based infection control precaution provides protection from dust particle?

Answer 4

Airborne precaution

Question 5

When the coagulation of fresh whole food is prevented through the used of an anticoagulant. The straw-colored fluid that can be separated from the cellular element is:

Answer 5

Plasma

Question 6

Which characteristic is inaccurate with respect to the anticoagulant dipotassium ethylenediaminetetraacetic acid (K2EDTA)?

Answer 6

Is used for most routine coagulation studies

Question 7

Heparin inhabits the clotting of fresh whole blood by neutralizing the effect of:

Answer 7

Thrombin

Question 8

8. An evacuated tube with EDTA has a __________colored stopper

Answer 8

Lavender = PURPLE

Question 9

An evacuated tube with heparin has a __________ colored stopper

Answer 9

Green

Question 10

An evacuated tube with sodium citrate has a ___________ colored stopper.

Answer 10

Blue
OR LIGHT BLUE

Question 11

An evacuated tube with no anticoagulant has a ______________ colored stopper

Answer 11

Red

Question 12

An evacuated tube with sodium fluoride

Answer 12

Gray

Question 13

An evacuated tube with thixotropic gel

Answer 13

Gold

Question 14

The first category of steps in performing a venipuncture include:

Answer 14

Introduction yourself and briefly explaining the procedure to the patient.

Question 15

The second category of step in performing a venipuncture include:

Answer 15

Identifying the patient, checking test requisitions, assembling equipment, washing hands, and putting on gloves.

Question 16

The third category of step in performing a venipuncture include:

Answer 16

Selecting an appropriate site and preparing the site

Question 17

The fourth category of step in performing a venipuncture include:

Answer 17

Reapplying the tourniquet and performing the venipuncture

Question 18

The final category of step in performing a venipuncture include:

Answer 18

Removing the tourniquet, removing the needle, applying pressure to the site, and labeling all tubes.

Question 19

The appropriate veins for performing a routine venipuncture are the

Answer 19

Cephalic, basilic, and median cubital

Question 20

A blood sample is needed from a patient with intravenous (IV) fluid lines running in one arm. Which of the following is an acceptable produce?

Answer 20

Obtain sample from the other arm

Question 21

How should the bevel of the needle be held during a venipuncture

Answer 21

Upward

Question 22

A hematoma can be form if

Answer 22

All the above
Improper pressure is applied to a site after the venipuncture.
The patient suddenly moves, and the needle comes out of the vein.
The needle punctures both walls of the vein.

Question 23

Phlebotomy problems can include

Answer 23

All the above
The use of improper anticoagulants
Misidentification of patients
Inadequate filling of an evacuated tube containing anticoagulation

Question 24

Blood specimens are unacceptable for laboratory testing when

Answer 24

All the above
There is no patient name or. IDE notification number on the label.
The label on the request form and the label on the collection containers do not match.
The wrong collection tube been used ( for example anticoagulant additive instead of tube for serum).

Question 25

If serum is allowed to remain on the clot for a prolonged period, which of the following effects will be noted

Answer 25

Elevated level serum potassium

Question 26

A red pink appearance of serum/plasma can caused by:

Answer 26

Lysis of RBC (hemolyzed serum)

Question 27

Which of the following ares is are acceptable for the collection of capillary blood from an infant

Answer 27

Medial of lateral plantar surface

Question 28

The proper collection of capillary blood includes

Answer 28

All the above
Wiping away the first drop of blood.
Occasionally wiping away the site with a plain gauze pad to avoid the build up of platelet.
Avoiding the introduction of air bubble into the column of blood in a capillary collection tube.

Question 29

A dark yellow appearance of serum/plasma can be caused by

Answer 29

Elevated bilirubin (jaundice, intercity serum).

Question 30

A milky white appearance of serum/plasma can be caused by

Answer 30

Presence of lipids or fat (lipemic serum)